[BREAKING] Feat: quotation is now using ()

tests/forth/randomness.rs

@@ -38,14 +38,14 @@ fn coin_binary() {
 #[test]
 fn chance_zero() {
     // 0.0 probability should never execute the quotation
-    let f = run("99 { 42 } 0.0 chance");
+    let f = run("99 ( 42 ) 0.0 chance");
     assert_eq!(stack_int(&f), 99); // quotation not executed, 99 still on stack
 }
 
 #[test]
 fn chance_one() {
     // 1.0 probability should always execute the quotation
-    let f = run("{ 42 } 1.0 chance");
+    let f = run("( 42 ) 1.0 chance");
     assert_eq!(stack_int(&f), 42);
 }
 
@@ -281,7 +281,7 @@ fn wchoose_negative_weight() {
 #[test]
 fn wchoose_quotation() {
     let f = forth_seeded(42);
-    f.evaluate("{ 10 } 0.0  { 20 } 1.0  2 wchoose", &default_ctx())
+    f.evaluate("( 10 ) 0.0  ( 20 ) 1.0  2 wchoose", &default_ctx())
         .unwrap();
     assert_eq!(stack_int(&f), 20);
 }